Pelechano, N,  Stocker, C., Allbeck, J., and Badler, N.  "Being a part of the crowd: Towards validating VR crowds using presence". In Proceedings of the 7th International Joint Conference on Autonomous Agents and Multi-Agent Systems (AAMAS'08). Estoril, Portugal, 2008. pp.136-142. [video (4.5MB divX)

Pelechano, N., Stocker, C., Allbeck, J., and Badler, N. "Feeling crowded? Exploring presence in virtual crowds". In Proceedings of the 10th Annual International Workshop on Presence (PRESENCE '07). Barcelona, Spain, 2007. pp.373-376.  

Gu, E., Stocker, C., and Badler, N. “Do you see what eyes see? Implementing inattentional blindness”. In Proceedings of the 5th International Conference on Intelligent Virtual Agents (IVA '05). Kos, Greece, 2005. pp.178-190.